DS_S1M8837 Datasheet, PDF (25/29 Pages) Samsung semiconductor – FRACTIONAL-N RF/INTEGER-N IF DUAL PLL

FRACTIONAL-N RF/INTEGER-N IF DUAL PLL
Serial Data Input Timing
DATA
MSB
DATA[21]
DATA[20]
DATA[10]
DATA[9]
CTL[1]
LSB
CTL[0]
S1M8836/37
CLOCK
LE
LE
tDH
tDS
tDH
OR
tCWH
tCLE
tLEW
Phase Detector and Charge Pump Characteristics
Phase difference detection Range : -2π to +2π
When the positive-slope polarity of PFD is selected, W2[17]=HIGH or W3[13]=HIGH;
fr
fp
LD
CPo
fr > fp fr = fp fr < fp
fr < fp
fr < fp
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